LEAN DUPLEX UNS S32101 by Taashvi Special Alloys
LDX 2101®, Duplex Steel
- UNS S32101
- ASTM A240, EN 1.4162, Werstoff 1.4162
Forms of LDX 2101 Available at Taashvi Special Alloys?
- Plate
LDX2101 Overview
LDX 2101 is a low-alloyed, general purpose lean duplex stainless steel. It possesses properties such as high mechanical strength, similar to that of other duplex steels, and good corrosion resistance. Compared to 300 series stainless steels, 2101 duplex stainless provides superior strength and greater chloride stress corrosion cracking resistance.
The use of manganese ensures proper ferrite-austenite phase balance, while allowing a reduction in nickel content. As a result, LDX 2101 is priced competitively with 304L and 316L stainless steels. Due to its relatively low alloying content, it is less prone to precipitation of intermetallic phases than other duplex steels.
Corrosion Resistance
The corrosion resistance of LDX2101 is generally good, and therefore is suitable for use in a wide range of general-purpose applications and environments. Attributable to its duplex structure, LDX 2101 offers an excellent resistance to stress corrosion cracking. It also offers corrosion resistance comparable to 304L and 316L stainless steel, making it an excellent candidate to replace 300 series stainless in a wide variety of applications.
What are the characteristics of LDX 2101?
- High resistance to chloride stress corrosion cracking
- Chloride pitting and crevice corrosion resistance comparable to 316L stainless
- Good general corrosion resistance
- High strength
- Good sulfide stress corrosion resistance
- Good machinability and weldability
Chemical Composition, %
| Cr | Ni | Mo | C | N | Mn | Si | P | S | Cu | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
|
21.0-22.0
|
1.35-1.70
|
.10-0.80
|
.040 Max
|
0.20-0.25
|
4.00-6.00
|
1.00 Max
|
.040 Max
|
.030 Max
|
0.10-0.80
|
Balance
|
In what applications is LDX 2101 used?
- Chemical process vessels, piping and heat exchangers
- General purpose stainless steel applications
- Storage Tanks
- Water treatment
- Pulp & Paper mill equipment
- Water heater tanks
ASTM Specifications
| Pipe Smls | Pipe Welded | Tube Smls | Tube Welded | Sheet/Plate | Bar |
|---|---|---|---|---|---|
|
A790
|
A790
|
A789
|
A789
|
A240
|
A276
|
Mechanical Properties
- Specified Tensile Properties ASTM A240
- Cold Rolled Plate and Sheet > ¼”
| Alloy | Ultimate Tensile Strength, ksi Minimum | .2% Yield Strength, ksi Minimum | Elongation % Minimum | Hardness Brinell Maximum |
|---|---|---|---|---|
|
LDX 2101
|
94
|
65
|
30
|
290
|
|
304/304L
|
75
|
30
|
40
|
201
|
|
316/316L
|
75
|
30
|
40
|
217
|
|
2205
|
95
|
65
|
25
|
293
|
Mechanical Properties
- Specified Tensile Properties ASTM A240
- Cold Rolled Plate and Sheet≤¼”
| Alloy | Ultimate Tensile Strength, ksi Minimum | .2% Yield Strength, ksi Minimum | Elongation % Minimum | Hardness Brinell Maximum |
|---|---|---|---|---|
|
LDX 2101
|
101
|
77
|
30
|
290
|
|
304/304L
|
75
|
30
|
40
|
201
|
|
316/316L
|
75
|
30
|
40
|
217
|
|
2205
|
95
|
65
|
25
|
293
|
LDX2101® is a registered trademark of Outokumpu Stainless.
Coil / Sheet /Plate Specification
Dimensions : ASTM, ASME, AISI, DIN, BIS
Thickness : 0.50mm - 100mm
Size : 1000 mm x 2000mm, 1220mm x 2440mm, 4' x 8', 1250mm x 2500mm, 1500mm x 3000mm to 6000mm, 2000mm x 4000mm to 6000mm
Finish : Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
Form : Shim Sheet, Perforated Sheet, Profile Cut,
Seamless & Welded Pipes & Tubes Specification
Specification : ASTM, ASME, DIN, NFA, JIS.
Thickness : 4.0mm - 100mm.
Pipe Size : 1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.
Tube Size : 1/2" OD to 8" OD.
Length : Cut length, Fix length, Single Random, Double Random & Required Length.
Form : Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pancake Coils, Hydraulic Tubes.
End : Plain End, Beveled End, Threaded End.
Type : Seamless & Welded Pipes & Tubes.
Round Bar Specification
Dimensions : ASTM, ASME,AISI, API.
Size : 5 mm to 500 mm
Length : from 2.00mm to 6.35mm (0.078" to 0.25") dia.
Finish : Bright, Black, Polish, Forged
Form : Round Bar, Square, Hexagon
Condition : Cold Drawn & Polished Cold Drawn, Centerless Ground Bars & Polished
Other Services : Machining (CNC), Centerless Grinding (CG), Heat Treatment, Annealing, Pickling, Polish, Rolling, Forging, Cutting, Bending, Minor Fabrication
Seamless & Welded Pipes & Tubes Fittings Specification
Specification : ASTM, ASME, DIN, NFA, JIS.
Size : 1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.
Form : Elbow, Tee, Reducer, Stub End, End Cap, Pipe Nipple, Weldolet,
End : Beveled End, Threaded. Plain End,
Type : Seamless & Welded Pipe & Tubes Fittings, Buttweld Fittings & Dairy Fittings.
